Question

if the diagonal of the square is 20 under root 2 to find the perimeter and area of the square​

Answer 1

d = 20√ 2

d^2 = 2s^2

(20√ 2)^2 = 2s^2

800 = 2s^2

s^2 = 400

s = 20

Therefore, perimeter = 4s = 4*20 = 80

and

Area = s^2 = 20^2 = 400

Hope this Helped!

Answer 2

Answer:

Perimeter =80

Area =400

Step-by-step explanation:

• SIDE= diagonal /√2
• =20√2÷ √2
• =20

Perimeter =4×Side

= 20×4

=80

Area = Side × Side

= 20×20

= 400